Diseases of the Urinary Organs. 127 



Imperforate urethra, or prepuce, requires immediate 

 opening. 



Retention from paralysis necessitates the use of the cathe- 

 ter, which should be repeated from time to time ; but it is 

 advisable not to withdraw the whole contents at first, other- 

 wise collapse without contraction is likely to ensue ; a small 

 quantity of urine left in is more likely to stimulate the organ, 

 and by its warmth aid in restoring it to a natural condition. 

 Strychnine or nux vomica is in such cases, exceedingly 

 useful. 



When the retention takes place from disease of the penis, 

 other than urethritis, as warty growths, an operation for the 

 removal of the impediment is necessary. (See "Warts on 

 the Penis.") 



Youatt quotes a singular case of retention of urine, caused 

 by the presence of a worm in the urethra. 



M. Seon, veterinary surgeon of the Lancers of the Body- 

 guard, was requested to examine a dog who strained in vain 

 to void his urine, often uttering dreadful cries, and then 

 eagerly licking his penis. M. Seon, after having tried in 

 vain to abate the irritation, endeavoured to pass an elastic 

 bougie. He perceived a conical body, half an inch long, 

 protruding from the urethra with each effort of the dog to 

 void his urine, and immediately afterwards returning into 

 the urethra. He crushed it with a pair of forceps, and 

 drew it out. It proved to be a worm resembling a 

 strongylus, four and a half inches long. It was living, and 

 .moving about. M. Seon could [not ascertain its species. 

 The worm being extracted, the urine flowed, and the dog 

 jsoon recovered.* 



PARALYSIS OF THE BLADDER. 

 This cystic condition may occur from protracted dis- 

 tension of the bladder, owing to the retention of urine ; or 



* Prat. Med. Vet., Fev. 1828. 



